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Sewing Machine for Embroderng. y

No. 83,909. Patented Nov. 10, 1868-v 3 Sh t--Sh 2. A. BONNAZ. ee s eet Sewing Machine for Embroiderng.

Patented Nov. 10, 1868.

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3 Sheets-Sheet 3. A. BON NAZ.

Sewing Machine for Embroiderng.

No. 83,909. Patented Nov. 10, 1868.

tinted M" gisten ANTOINE BONNAZ, OF PARIS, FRANCE, ASSIGNOR TO EMILE COR NELY, OF THE SAME PLACE.

Letters Patent No. 83,909, dated November 10, 1868.

DEPROVEMENT IN SEWING-MACHINETOR EIIBRQIDERIN'G.

The Schedule referred to in these Letters Patent and making part of the same,

To ail whom it ma/y concerne Be it known that I, ANTOINE BONNAZ, of the city of Paris, in the Empire of France, have invented ccrtain new and useful Improvements in Embroidery' Machines; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had t0 the accompanying drawings, in which- Figure l represents a side view of the-machine.

Figure 2 represents an end view thereof.

Figure 3 represents a plan of those parts of the machine which are below its platform..

Figures 4, 5, 6, 7 8, 9 and 10 represent detached views, hereafter to be referredvto.

The like parts of the machine" are denoted on the several figures by similar letters.

In making embroidery-Work on a sewing or embroid- -ery-machine, the great difficulty occurs that, on making rounds or other intricate design, the entire cloth has to be turned constantly, in conformity with the design to be made, and for this reason that description of embroidery-work is not only diiicult to be executed, but can be made with a very moderate degree of speed only. To avoid this difliculty, I have combined the several working-'parts of an embroidery-machine in such a manner that a universalffeed motion causes the cloth to move in any direction desired, and. that fthe hooks or needles which make the stitch move in combination with said feed-motion,so as not to change their relative position to each other, and thus embroidery-work of the most intricate design can be made at any desired speed, and Without turning the cloth.

To the better understanding of the machine, I will rst explain the manner in which the stitch is made.

Lemploy a hookedl needle, c, represented at g. 6,. such as is employed in making crochet-work, and saidhook is secured to the needlebar A, and has a vertical reciprocating motion imparted to it in piercing the cloth a, which is supported by the cloth-plate b. The needlehook c takes the thread (marked. in red) ybeneath the upward, or else the machine will make drop-stitches. l

This operation of presenting the thread to the hook c is eiected by means of an oscillating looper, B, which, by means of a projection, 1, takes hold of the thread, and when the needle has arrived at its lowest position,

the looper B makes a. turn of about two hundred and y seventy degrees of a circle, and lays the thread around i the needle, which, on rising, takes infallibly hold of the thread.

It is further necessary that, when the needle-boon c rises, the cloth should be held firmly down upon the cloth-plate, so as to prevent the hook c from pulling it upward. This i's eiecfed by means of a nipple, d, which surrounds the needle. While the needle rises, the nipple d remains stationary until the .needle c has cleared the cloth, after which the nipple d rises, so that the feed of the cloth can take place.

'The feed is effected by means of the feed-surface5;;5

which has a ring-shape, and whichs urrounds the needle and its nipple.` The feed-surface has a vibratory horizontal as well asverticalmotion, like that of an ordinary sewing-machine, besides its universal-feed motion, hereafter to be described.

To enable an easier and better understanding of my invention, I will desciil e the modus operandi of the labove elements, when the machinepworks on straight lines only, and add to it afterward the operation of said parts when the machine runs on curved lines, and for producing angular work C represents the driving-wheel of the machine. It is o secured to a shaft, E, which is provided with a coupling-disk, F, which, by means of the couplingspring f, drives the shaft D. The latter turns an eccentric, whose pin 4a? (iig. l5) enters into 'the camgroove b2 of the'needle-bar driver H, which, holding the needle-bar carrier G between two collars, 2 3, imparts to it the desired vertical reciprocating motion. The needle-bar A itself is secured to the needle-bar carrier by means of the pressure-screw 4.

The movement of the nipple d is effected by means f a cam, c2, which acts upon the lever di, and which operates the pin ez of the nipple-carrier H, to raise the nipple d, which, in its turn, is pressed downwardnpon the cloth-plate, by the action of a spring, a?, whenthe cam c releases the lever di.

The bevel-pinion K is secured to the horizontal shaft E, and gears into a similar pinion, L, secured to the vertical shaft M, that, at its lower end, is provided with a crank, N, which, on turning, imparts a vibratory l motion to the rod k and to the slide l, which, by the action of the spiral nut a3, which turns in the ring b3, and the reciprocations of which impart to the 'spirallycut shaft I an oscillating motion, which, by the action of the bevel-gears c3 and di, is transmitted to the vertical shaft f3 of the looper B. Thus, at each mdtion of the needle-hook c, the looper B is turned the amount necessary to throw the thread into the path of the rising needle-hook.

The vertical motion of the feed-surface e is effected by means of the cam c2, which, acting upon the lever g', the latter raises the bar O' by acting upon pin f2. The feed-bar O2 is connected to the bar O by a universal joint, 6 7, on which said feed-bar can swing freely in all directions. When the action of the cam G ceases, the spring y" causes the bars O and O2, and

` consequently the feed-surface e, to descend upon the cloth-plate.

The horizontal action of the feed-surface is effected in the following manner:

tothe feed-bar Oi. It thus imparts to the latter and to the feed-surface e the horizontal-feed motion.

As the'nut fm2 is adjusted upon the square part o of the piece to which the lever mis pivoted, it will forcibly turn therewith, and Within its collar n, as the piece o is turned, and thus the direction of the feed ischanged according to the position which is given to the piece o. u Having thus described the operation of the several parts of the machine. for making straight lines, it is to be shown in what manner any design of curved lines can be executed Without turning the cloth, and which is the essentialfeature of the machine.

S represents a crank, beneath `the platform of the machine, whose shaft is supported by a bracket, T.

' l A bevel-pinion, r, transmits motion to a pinion, s,

i and y, and from shaft P to shaft G by the pinions z and a1 A pinion,-U, is secured to the end of the shaft G', and turnsthe pinion V, whose shaft is rigidly' secured to the. frame of the machine.

A cogged wheel, W, is secured to pinion V, and, by means of an endless chain, h", itis connected to a cogged wheel, Y, secured on the needle-bar carrier G.

By turning the crank S, a combined turning-movement is given to the looper' B, to the needle-bar carrier G, and to the piece o, which controls the direction of the feed-motion, and thus any design, no matter how complicated, can be embroidered Without turning the cloth, but by simply directing its motion by tiuning the crank S.

In makingcomplicated embroidery-work, and chieiiy in embroidering letters, it frequently occurs that sharp angles have tobe produced. This can only be done by arresting the motion o f the machine instantaneously,

arid by suddenly turn'mg the crank S the desired angle,

and by again starting the machine. A

To accomplish this in an easy and effective manner, I have organized the following coupling-device On Working the machine, two treadles are applied to its stand, one for each foot. By means of the righthand treadle, the iiy-wheel is turned, whose strap passes in and around the groove of the wheel C, and said wheel thus rotates constantly. The left-hand treadle is connected, by means of a rod, A', to the lever B, which is pivoted to the screw O. The end of the lever B is connected with the vertical slide D. By pressing upon the treadle connected with rod A1, the slide D is depressed, as represented in iigs. 1 and 9.

The shaft D is provided with a spring-clutch, f, whose end springs into the notclrk-3 of the coupling-disk F, (figs. l and 9,) and, when the parts are in the positions represented at figs. l and 9, the shafts E andD are coupledl together, but, upon the treadle connected With rod A being released, the slide D' is raisedhhy the action of the spring mx, and the projection fma of the clutch-lever A2 is griped .by the tooth O3 on the circumference of disk Bi, as the latter turns, .forcing the arm p3 of clutch-lever A against the spring j, whereby the latter is forced oui of therecess k, as represented at iig. 10, instantaneously uncoupling the shaft D from shaft E, thus arresting the motion of the machine, although the driving-wheel C continues its motion. When the machine is thus uncoupled, the crank S is suddenly lturned, to change or to reverse the feed motion, and a sharp angle is produced on the design, without arresting the motive-power of the machine.

Having thus fully described the nature of my invention, I l

VWhat I claim herein as new, and desire to secure by Letters Patent, is-

1. The combination of ya hook or needlewith an oscillating looper B, and the universal-jointed feed-bar e, when said three elements are connected to each other by a mechanism, substantially such as described, which permits of turning one or the other of said devices, without changing the relative positions of said parts to each other, for the purposes described.

2. The universal-j onted feed-bar O2, incombination with the collar a, sleeve R, and the operating-parts which constitute the universal-feed motion above described, constructed and arranged substantially as and for the purposes set forth.

3. The combination and arrangement of parts, by

which the needle-bar carrier G is connected with the v feed-bar O2, the looper B, and the crankS, for impart ing the movements to thev several parts of the machine. 4. The coupling and uncoupling-device,substantially as herein described, for the purpose of `disconnecting the parts and suddenly changing the feed, when used in combinationwith an embroidery-machine, as described.

' BONNAZ. Witnesses:

F.- OLcor'r, DAVID T. FULLER. 

